Cisco 400-007 Exam With Confidence Using Practice Dumps

HIPAA requires integrity controls to prevent unauthorized data modification.

D (Technical integrity and transmission security): Ensures PHI data is protected against unauthorized alteration during storage and transmission.

This directly addresses the issue of data being altered without consent.

Why other options are incorrect:

A: Prevents unauthorized access but does not guarantee data integrity.

B: Administrative processes cover policies, not technical enforcement.

C: Focuses on physical device control, not data integrity.

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Route Distinguishers (RDs) are fundamental to MPLS Layer 3 VPN architecture (RFC 4364). They allow the service provider to distinguish identical IP prefixes from different VPN customers by adding a unique identifier to each VPN route, preventing conflicts from overlapping IP spaces.

Unique RDs ensure that the VPNv4 address family maintains separation of identical customer prefixes.

Why other options are incorrect:

B: Route Targets control route import/export policy but do not differentiate overlapping prefixes.

C: NAT is not required inside MPLS VPN for overlapping IPs.

D: VRF IDs are local identifiers on routers; not relevant for prefix uniqueness in control plane.

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B (IP Source Guard):IP Source Guard prevents IP address spoofing at Layer 2 by binding IP-to-MAC addresses and filtering unauthorized source IPs. It operates independently of encryption, so it has no impact on encryption performance.

Other options explained:

A: MACsec adds encryption and has performance implications.

C: DHCP snooping with DAI focuses on ARP spoofing, not IP address antispoofing specifically.

D: IPsec handles encryption, which directly impacts performance.